88 lines
2.8 KiB
C++
88 lines
2.8 KiB
C++
/*=============================================================================
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Copyright (c) 2016 Kohei Takahashi
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Distributed under the Boost Software License, Version 1.0. (See accompanying
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file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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==============================================================================*/
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#include <boost/detail/lightweight_test.hpp>
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#include <boost/fusion/adapted/struct/adapt_struct.hpp>
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#include <boost/fusion/sequence/intrinsic/size.hpp>
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#include <boost/fusion/sequence/intrinsic/empty.hpp>
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#include <boost/fusion/sequence/intrinsic/begin.hpp>
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#include <boost/fusion/sequence/intrinsic/end.hpp>
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#include <boost/fusion/sequence/io/out.hpp>
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#include <boost/fusion/iterator/equal_to.hpp>
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#include <boost/fusion/container/vector/vector.hpp>
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#include <boost/fusion/container/list/list.hpp>
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#include <boost/fusion/container/generation/make_vector.hpp>
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#include <boost/fusion/sequence/comparison/equal_to.hpp>
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#include <boost/fusion/sequence/comparison/not_equal_to.hpp>
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#include <boost/fusion/sequence/comparison/less.hpp>
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#include <boost/fusion/sequence/comparison/less_equal.hpp>
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#include <boost/fusion/sequence/comparison/greater.hpp>
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#include <boost/fusion/sequence/comparison/greater_equal.hpp>
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#include <boost/fusion/mpl.hpp>
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#include <boost/fusion/support/is_view.hpp>
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#include <boost/mpl/is_sequence.hpp>
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#include <boost/mpl/assert.hpp>
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#include <iostream>
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class empty_struct{};
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BOOST_FUSION_ADAPT_STRUCT(empty_struct,)
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int
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main()
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{
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using namespace boost::fusion;
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using namespace boost;
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std::cout << tuple_open('[');
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std::cout << tuple_close(']');
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std::cout << tuple_delimiter(", ");
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{
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BOOST_MPL_ASSERT_NOT((traits::is_view<empty_struct>));
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BOOST_STATIC_ASSERT(!traits::is_view<empty_struct>::value);
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empty_struct e;
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std::cout << e << std::endl;
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BOOST_TEST(e == make_vector());
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BOOST_STATIC_ASSERT(fusion::result_of::size<empty_struct>::value == 0);
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BOOST_MPL_ASSERT((fusion::result_of::empty<empty_struct>));
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BOOST_MPL_ASSERT((fusion::result_of::equal_to<
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fusion::result_of::begin<empty_struct>::type,
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fusion::result_of::end<empty_struct>::type>));
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}
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{
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fusion::vector<> v;
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empty_struct e;
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BOOST_TEST(v == e);
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BOOST_TEST_NOT(e != v);
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BOOST_TEST_NOT(v < e);
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BOOST_TEST(v <= e);
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BOOST_TEST_NOT(e > v);
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BOOST_TEST(e >= v);
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}
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{
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empty_struct e;
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// conversion from empty_struct to vector
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fusion::vector<> v(e);
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v = e;
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// FIXME
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// conversion from empty_struct to list
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//fusion::list<> l(e);
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//l = e;
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}
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BOOST_MPL_ASSERT((mpl::is_sequence<empty_struct>));
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return boost::report_errors();
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}
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